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Finding the Fourth Proportional to 881,050, 1,215,850.08 and 478,642

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Solution

The fourth proportional to 881,050, 1,215,850.08 and 478,642 is: 660,526.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,050 : 1,215,850.08 = 478,642 : x
  2. Step 2: Convert to fraction form
    881,050/1,215,850.08 = 478,642/x
  3. Step 3: Cross multiply
    881,050x = 1,215,850.08 × 478,642
  4. Step 4: Simplify right side
    881,050x = 581,956,913,991.36
  5. Step 5: Solve for x
    x = 581,956,913,991.36/881,050
  6. Step 6: Final answer
    x = 660,526.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.